disadvantage of kill switch on shifter knob,
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- easy to knock / hit, accidently push. which might bad considering your foot might not be pressing the clutch pedal and the car will be in gear when you are killing it unless you added a 2 or more pole relay to your clutch pedal switch so you get more "switches" out of the one switch, allowing you to prevent the engine from being killed unless clutch pedal is down.
- trying to retro-fit a push button inside of a shifter knob is tricky, and shifter knobs with push buttons already on them can be pricey.
advantage of the kill switch on the shifter knob
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- easy wiring.
Disadvantages of CLUTCH pedal switch.
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- you are disabling a major safety feature of the vehicle which is preveting it from being started in gear. This is a safety issue and so there fore you should take measures to work around this. like have a sensor that detects if the car is in Neutral so the car won't start if its in gear.
- it is impossible to use the clutch as both the engine kill switch AND a switch that is used when you are starting the engine. How can you start an engine when its Main Relay is disabled ? You have to find a different system. The Neutral position sensor on your manual shifter knob is one way (if you can make it somehow).
- when driving you cannot press the clutch pedal completely if you are trying to accellerate strongly. But if you are good at the clutch or have a good clutch pedal, or adjust the clutch pedal, you can still complete a successful shift even if you don't press the clutch fully down.- but slower driving = saving gas..
advantage of the clutch pedal switch.
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- your gears will not be engaged if you accidently kill the car because your clutch is disengaged.
- easier to use more frequently your clutch is pressed quite a few times in one trip--> save more gas; you would have to get very skilled at your new layout for your pedals. I've been practicing my half clutch gear changes and stop signs lately.
- causes you to drive slower so you don't kill the engine (driving slower = saves more gas
Feathering the clutch pedal foot all the time will probably cause you to also feather your driving foot on the gas pedal (subconciosuly).
Anyone know how to make an automatic engine re-start circuit ?